(4) باب مَا جَاءَ فِي فَضْلِ النَّفَقَةِ فِي سَبِيلِ اللَّهِ
Narrated Khuraim bin Fatik:
That the Messenger of Allah (ﷺ) said: "Whoever spends a sum in the cause of Allah, it is recorded for him seven-hundred fold."[Abu 'Eisa said:] There are something on this topic from Abu Hurairah.This Hadith is Hasan, we only know of it from the narration of Ar-Rukain bin Ar-Rabi' (a narrator in the chain of this Hadith)
Reference: Jami` at-Tirmidhi 1625
In-book reference: Book 22, Hadith 7
English translation: Vol. 3, Book 20, Hadith 1625